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Arachnoiditis ossificans

Authors:

Ph Bernard ,

Department of Radiology, AZ Sint-Maarten, Mechelen-Duffel, Mechelen
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F M Vanhoenacker,

Department of Radiology, AZ Sint-Maarten, Mechelen-Duffel, Mechelen Department of Radiology, Antwerp University Hospital, Edegem
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N Adam

Department of Physical Medicine, Sint-Augustinus Hospital Antwerp, Wilrijk, Belgium
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Abstract

An 18-year-old female underwent a CT scan and subsequently an MRI scan of the lumbar spine at our department because of chronic low back stiffness and pain, extending in the sacro-iliac and coccygeal regions. The patient had been involved in a car accident one year before. There was no history of previous surgery. CT revealed a spontaneous hyperdensity of the dural sac (Fig. A, black asterisk) and the nerve root sheaths L4 to S1. MRI showed signal loss on both T1- and T2-weighted images of the dural sac (Fig. B-C, white asterisks), and nerve roots suggesting calcification. Furthermore, a plate-like hypo-intense structure was visible at the posterior leptomeninges of the lower thoracic spine (Fig. B-C, white arrows). Treatment with physiotherapy and paralumbar infiltrations was performed resulting in clinical improvement after 6 months.

How to Cite: Bernard P, Vanhoenacker FM, Adam N. Arachnoiditis ossificans. Journal of the Belgian Society of Radiology. 2010;93(2):108. DOI: http://doi.org/10.5334/jbr-btr.363
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Published on 14 Feb 2010.
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